Assertion:- If earth did not have atomosphere, its average surface temperature would be lower than what it is now.
Reason:- Greenhouse effect of the atmosphre would be absent, if earth did not have atmosphere.
A. both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. Assertion is true but the Reason is false.
D. both, Assertion and Reason are false.
